Tube High-Temperature Furnace | D-35 to D-155

The D-35, D-55, D-80, D-110, D-125 and D-155 tube furnaces support material heating, atmosphere heating, sintering, heat treatment, R&D testing and quality inspection. The series reaches 1200°C, with a typical operating temperature of 1100°C. Select a model based on tube inner diameter, heated-zone length, sample size, target temperature, site power and process requirements. Suitable for ceramic, metal, electronic and powder materials. Confirm the final configuration for your sample and workflow.

Tube High-Temperature Furnace

The D-35, D-55, D-80, D-110, D-125 and D-155 tube furnaces are designed for material heating, atmosphere heating, sintering, heat treatment, R&D testing and quality inspection. The series reaches 1200°C, with a typical operating temperature of 1100°C. Select a model based on tube inner diameter, heated-zone length, sample size, target temperature, site power and process requirements. Suitable for ceramic, metal, electronic and powder materials. Confirm the final configuration for your sample, test objective and quality-control process.

Tube heating up to 1200°C

A maximum temperature of 1200°C and typical operation at 1100°C support sintering, atmosphere heating, heat treatment and R&D testing.

Six tube inner diameters

Choose from 35, 55, 80, 110, 125 and 155mm inner diameters based on sample size and batch quantity.

P.I.D. or program control

Choose microcomputer P.I.D. control or two 8-step programmable temperature controllers. Confirm the configuration for your needs.

How to select a tube high-temperature furnace

Start with sample size, tube inner diameter, heated-zone length, batch quantity, target temperature, hold time, gas introduction needs, site power and installation space. D-35 suits smaller tube diameters; D-55 and D-80 suit small-to-medium applications; D-110, D-125 and D-155 suit larger tubes or samples. Confirm the final model against the sample and process.

Product specifications

ModelD-35D-55D-80D-110D-125D-155
Chamber dimensions
W x L x H
35mm ID55mm ID80mm ID110mm ID125mm ID155mm ID
Overall dimensions
W x L x H
250 x 250 x 400250 x 350 x 400280 x 450 x 430280 x 450 x 430320 x 600 x 500360 x 600 x 540
Heated-zone length200mm300mm400mm400mm500mm500mm
Voltage / current110V / 7A110V / 11A220V / 13A220V / 18A220V / 26A220V / 35A
Temperature rangeMaximum 1200°C; typically 1100°C
Temperature controllerMicrocomputer P.I.D. function or two 8-step programmable temperature controllers
Temperature accuracy± 1°C%
ThermocoupleType K
Heating element / chamberImported high-temperature ceramic board and concealed imported heating wire for long service life
InsulationImported ceramic wool with multi-layer insulation
Cabinet materialPowder-coated galvanized steel
Safety protectionSelf-diagnostics, temperature abnormality, over-temperature, open-circuit and power protection

Applications and product features

Suitable for: Ceramic, metal, electronic and powder materials; research institutes, school laboratories, factory processes, quality inspection, atmosphere heating, sintering and general high-temperature heat treatment.

Features: Imported high-temperature ceramic chamber boards and concealed heating wire are paired with imported ceramic wool insulation. Choose microcomputer P.I.D. control or two 8-step programmable temperature controllers based on the application.

Selection note: Consider tube inner diameter, heated-zone length, sample size, voltage/current, temperature requirements and whether atmosphere processing is needed. Confirm the configuration for your sample and workflow.

Frequently asked questions

Q1: How do I choose between D-35, D-55, D-80, D-110, D-125 and D-155?

Compare tube inner diameter, heated-zone length, sample size and batch quantity. D-35 has a 35mm inner diameter for smaller samples; D-55 and D-80 suit small-to-medium applications; D-110, D-125 and D-155 suit larger tubes or samples. Confirm the model for your sample and process.

Q2: What applications suit a tube high-temperature furnace?

Applications include heating ceramic, metal, electronic and powder materials; sintering; atmosphere heating; heat treatment; R&D testing; and quality inspection. Suitability depends on material, target temperature, process time and atmosphere.

Q3: How does a tube furnace differ from a box furnace?

A box furnace suits crucibles, trays or multiple samples. A tube furnace suits materials requiring a tube, heating inside the tube, atmosphere processing or a specified tube diameter. It is commonly evaluated when gas introduction or tube-environment control is needed.

Q4: Which temperature controller should I choose?

The available options include microcomputer P.I.D. control or two 8-step programmable temperature controllers. Provide process details to confirm the suitable control option for staged heating, holding or temperature profiles.

Q5: What information should I provide when requesting a quote?

Provide sample material, dimensions and weight; required tube diameter and heated-zone length; typical and maximum temperatures; hold time; gas introduction needs; control preference; site power and installation space.

Specifications are compiled from current product information. Confirm chamber dimensions, heated-zone length, controls, power and supply version for the selected model and application.

Contact Fulcrum Technology for specifications and a quote

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